SUPPLEMENT SCIENCEInsights
Search

Search Insights

Try choline, nano-curcumin or probiotics.

    Ingredient guide · Ingredient reference

    Vitamin C in green and gold kiwifruit: use the named variety

    USDA’s green and SunGold kiwifruit entries differ substantially. A variety-specific value is more informative than one number for every kiwi.

    Read the evidence ↓

    Supplement Science Insights Editorial Team

    Published September 23, 2026

    Two records with different concentrations

    USDA SR Legacy 2018 reports 92.7 mg vitamin C per 100 g for raw green kiwifruit and 161.3 mg for raw ZESPRI SunGold. The latter is a named cultivar record, not a value that should be assigned to every gold kiwi. Both figures are reference food-composition estimates rather than a comparison of clinical outcomes. [1]

    Per-fruit values also depend on size

    The green record’s 69 g fruit gives about 64.0 mg vitamin C. SunGold’s listed 81 g fruit gives about 130.7 mg. The difference per piece reflects both composition and the different reference weights. Use edible weight and a matching variety when estimating your own portion. [1]

    A hypothetical matched-weight comparison

    For 75 g portions, the reference estimates are 69.5 mg for green and 121.0 mg for SunGold. Holding weight constant isolates the database concentration difference. It does not mean every piece will contain exactly that amount or establish that additional vitamin C always improves health. [1]

    Hypothetical example — compare two 75 g edible portions
    USDA variety entryEstimated vitamin C
    Green69.5 mg
    SunGold121.0 mg
    Vitamin C in green and gold kiwifruit: use the named variety — original article outline diagram
    Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

    Sources for this article

    1. USDA FoodData Central — SR Legacy April 2018 food composition dataset
      Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.